%0 Journal Article %T Colonic Angiodysplasia with a Huge Submucosal Hematoma in the Sigmoid Colon %A Daisuke Koike %A Kenji Ooe %A Takayuki Shimizu %A Yukihiro Nomura %J Archive of "Case Reports in Surgery". %D 2016 %R 10.1155/2016/3457367 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4906173/